United Science presented its recent work on custom built xanthate sensor for the flotation industry. The work was supported in part by the National Science Foundation, FLSmidth, and Freeport McMoran. Key findings from the study showed that the sensors could measure residual unreacted xanthate in froth solutions.
Xanthate is a collector chemical widely used in the beneficiation of sulfide metals such as copper, lead, etc. We developed an electrode based on fluorous sensing membranes to measure xanthate usage in a flotation cell. Flotation is a solid-solid separations process that selectively separates the desired substance from the undesired waste material. In the case of copper, the ore is ground to approximately 75 microns and is dispersed into water. Collectors selectively react with the copper particles and float, [...]